The offending code that's blocking is in QtMir: --- QTMIR --- Thread 11 (Thread 0xae5ff450 (LWP 2627)): ... #6 0xffffffff in SessionAuthorizer::requestAuthorizationForSession(unsigned long long const&, bool&) () at /usr/lib/arm-linux-gnueabihf/qt5/plugins/platforms/libqpa-mirserver.so #7 0xffffffff in SessionAuthorizer::connection_is_allowed(mir::frontend::SessionCredentials const&) () at /usr/lib/arm-linux-gnueabihf/qt5/plugins/platforms/libqpa-mirserver.so --- MIR --- #8 0xffffffff in mir::frontend::ProtobufConnectionCreator::create_connection_for(std::shared_ptr<boost::asio::basic_stream_socket<boost::asio::local::stream_protocol, boost::asio::stream_socket_service<boost::asio::local::stream_protocol> > > const&, mir::frontend::ConnectionContext const&) (this=0xb047c594, socket=std::shared_ptr (count 2, weak 0) 0x75a9f4, connection_context=...) at /build/buildd/mir-0.11.0+15.04.20150209.1/src/server/frontend/protobuf_connection_creator.cpp:65
** Project changed: mir => unity-mir ** Changed in: unity-mir Status: Invalid => New ** Package changed: unity8 (Ubuntu) => qtmir (Ubuntu) ** Project changed: unity-mir => qtmir -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1421308 Title: Deadlock in Unity8 Status in Qt integration with the Mir display server: New Status in qtmir package in Ubuntu: New Bug description: Got a lockup on boot, here's a another gdb "t a a bt". To manage notifications about this bug go to: https://bugs.launchpad.net/qtmir/+bug/1421308/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp